|
Quantity
|
Cost
|
||
|
|
|||
|
|
|||
String Set Pirastro Flexocor-Permanent 4/4 for Violin (Ball-End E)
Pirastro sums this line up in one line: "the warm sounding steel string" — and that is the whole point of Flexocor-Permanent. Instead of a single solid wire it uses a rope core of steel, a bundle of fine steel strands twisted into a flexible cable, which is where the maker's "warm and round sound with a clear overtone spectrum" and "pliable left hand feeling" come from. Set 316020 is built for 4/4 in medium gauge and deliberately mixes four metals: a plain steel ball-end E at 8.5 kp, an aluminium A at 6.0 kp, a titanium D at 5.4 kp and a silver G at 5.2 kp. To that Pirastro adds "great projection", "outstanding response" and a very stable character — a rare case of a steel set bought for its timbre rather than its stamina.
🏆 SoundsGood — genuine Pirastro strings only, handmade in Germany.
A Steel Rope, Not a Solid Wire
Solid steel earned its cold reputation honestly: a single stiff wire hardly flexes, so it throws the sound out narrow and hard. A core twisted from many fine strands behaves differently — it gives under the finger and under the bow, and Pirastro puts the result plainly: a "smooth and lively tone with a pliable left hand feeling". In practice that means vibrato that actually works on these strings, and a bottom end that does not sound like a metal pipe.
Four Different Metals, One of Them Titanium
Every voice here gets its own winding metal, and the D stands out: titanium is light and very stiff at once, which makes it a rarity in a string catalogue. The lightness keeps the overtones alive, the stiffness holds the shape of the note — exactly what the maker calls a "clear overtone spectrum" and a "good diversity of sounds". The aluminium A stays agile, the silver G gets dense mass to anchor the bottom, and the 8.5 kp steel E closes the top as the tightest string in the set.
The Stability That Puts This Line on Stage
Pirastro describes these strings as "very stable" and claims "great projection" with a "big tone". A steel core barely elongates, so the set comes up to working condition quickly and then holds pitch — something no synthetic offers in its first days. Combine that with the projection and you get a set for the days when the instrument has to fill a hall and must not drift with the temperature: rehearsal, concert and a long drive, all in one day.
Specifications
| Purpose | Violin string set |
| Line | Flexocor-Permanent |
| Size | 4/4 (full) |
| Gauge | medium — the only gauge in the line for 4/4 |
| Core | Rope core steel |
| E string | Plain steel, unwound, ball end, 8.5 kp, art. 316120 |
| A string | Aluminium winding, 6.0 kp, art. 316220 |
| D string | Titanium winding, 5.4 kp, art. 316320 |
| G string | Silver winding, 5.2 kp, art. 316420 |
| Same set with a loop-end E | 316026 |
| Recommended rosin | Pirastro Schwarz — the maker's official recommendation for this line |
| Pirastro article | 316020 |
| Included | 4 strings, each in a Pirastro envelope marked with its article number |
| Country of Manufacture | Germany (handmade) |
What's Included
The set holds four strings — E, A, D and G — each in its own branded Pirastro envelope with the article number. That covers a full restring, with no single strings to add.
Who It's For
For the player who wants the stamina of steel without its cold timbre; for the violinist with a heavy bow arm who wears out synthetics before they have even opened up; and for the musician on a crowded schedule who needs the instrument in tune straight off a long journey.
Frequently Asked Questions
What exactly is in set 316020?
Four 4/4 medium-gauge strings on a rope core of steel: a plain steel E with a ball end (8.5 kp, art. 316120), an aluminium-wound A (6.0 kp, art. 316220), a titanium-wound D (5.4 kp, art. 316320) and a silver-wound G (5.2 kp, art. 316420).
What is the total tension of this set?
Pirastro does not publish a total figure for the Flexocor-Permanent set — its datasheet lists individual string tensions only: 8.5 kp on the E, 6.0 on the A, 5.4 on the D and 5.2 kp on the G. Those are the figures we quote, rather than an arithmetic total.
Is the E in this set ball end or loop end?
Ball end, as the title states; the set article is 316020. The same set with a loop-end E is article 316026.
Why is the D wound with titanium?
Titanium is light and very stiff at the same time: it adds no surplus mass, so it does not smother the overtones, yet it holds the shape of the note under bow pressure. On the D that produces the character the maker describes as a warm and round sound with a clear overtone spectrum.
Which rosin does Pirastro recommend for this line?
For Flexocor-Permanent the maker recommends its own Pirastro Schwarz rosin. That recommendation is specific to this line.
Are these genuine Pirastro strings?
Yes. SoundsGood supplies only genuine Pirastro product, handmade in Germany, in branded envelopes marked with article numbers.
🚚 Shipping and Payment
🏆 SoundsGood — full warranty and service support
✅ Quality guarantee — genuine strings only
🏪 Pickup — Kyiv, free
🚚 Nova Poshta / Ukrposhta / Meest — 1–3 days
💳 Installments — PrivatBank, Monobank
🎻 Order the Flexocor-Permanent set at SoundsGood! ⚡